This tunnel is quiet now, but come Monday morning, traffic will begin to flow through it.

Photo: Karl Nielsen Not labeled for reuse. All rights reserved.

The new Parkway offers three lanes in each direction, with a fourth auxiliary lane along portions of the southbound direction.

Photo: Karl Nielsen Not labeled for reuse. All rights reserved.

During the closure, crews will need to bust through barriers to connect the tunnels with active traffic lanes.

Photo: Karl Nielsen Not labeled for reuse. All rights reserved.

A worker puts finishing touches on one of the viaducts.

Photo: Karl Nielsen Not labeled for reuse. All rights reserved.

The route features two pairs of tunnels whose roofs will be landscaped to blend in with the environment.

Photo: Karl Nielsen Not labeled for reuse. All rights reserved.

Presidio Parkway Construction Progress

Tuesday, July 7, 2015

On July 8 the PR team took the media on a tour of the largely completed Presidio Parkway, a complex of ground-level roadways, viaducts and tunnels that are replacing the Doyle Drive connection to the Golden Gate Bridge. Hooking these pieces up into a seamless corridor will require substantial work under tight deadlines during the 3.5-day weekend closure from July 9-13, 2015.